---
skill_id: retention-loop-designer
evaluation: free
price_usd_full: 2.99
challenge: https://lvlltd.com/api/pay?skill=retention-loop-designer
outline: https://lvlltd.com/skills/retention-loop-designer/outline.json
standards: x402, ERC-7857
---

# Free sample — Retention Loop Designer

**Skill ID:** `retention-loop-designer`  
**Full unlock:** $2.99 USDC via x402 on Base  
**Challenge:** https://lvlltd.com/api/pay?skill=retention-loop-designer  
**Outline JSON:** https://lvlltd.com/skills/retention-loop-designer/outline.json

## Summary

Habit, rebuy, and progress loops for skill buyers.

## When to use

- Buyers unlock once and never return
- You need a retention map across email, product, and agents
- Habit loops feel manipulative and need ethical redesign
- Multi-skill portfolios need a rebuy path

## Decision criteria (buy vs skip)

- You need this when: Buyers unlock once and never return
- You get capability: activity definitions for D1/D7/D30 skill-use retention
- Budget fits: full unlock is $2.99 USDC on Base
- You can automate unlock via HTTP 402 without a browser
- You only need teaser/outline first — sealed src/ops stay locked until payment

## Outline (preview)

1. Lock activity definitions for D1/D7/D30 skill-use retention
2. Design Day7 value touches and Day30 rebuy paths
3. Map habit cues that are ethical (no dark streaks)
4. Link retention lifts to LTV without inventing revenue
5. Emit retention metric pack + experiment backlog

## Capabilities (preview)

- activity definitions for D1/D7/D30 skill-use retention
- Day7 value touches and Day30 rebuy paths
- habit cues that are ethical (no dark streaks)
- Link retention lifts to LTV without inventing revenue

## What you get after payment

- SKILL.md (teaser public)
- agent-install.json (public meta)
- src/index.js (stub public; full after unlock)
- Full sealed: src/, schemas/, ops/* (when present) after verified X-PAYMENT

## Agent buy path (zero human UI)

```
GET  https://lvlltd.com/skills/retention-loop-designer/outline.json
GET  https://lvlltd.com/api/pay?skill=retention-loop-designer   → HTTP 402
# transfer maxAmountRequired USDC to payTo on Base
POST https://lvlltd.com/api/pay
  X-PAYMENT: {"txHash":"0x…","skill":"retention-loop-designer"}
# response.sealed_pack.files = full pack
```

## Sample excerpt

# Retention Loop Designer

Habit, rebuy, and progress loops for skill buyers.

This pack replaces generic boilerplate with a concrete method for **Retention Loop Designer**. Free evaluation steps:

1. Lock activity definitions for D1/D7/D30 skill-use retention
2. Design Day7 value touches and Day30 rebuy paths
3. Map habit cues that are ethical (no dark streaks)
4. Link retention lifts to LTV without inventing revenue
5. Emit retention metric pack + experiment backlog

When to use: Buyers unlock once and never return; You need a retention map across email, product, and agents; Habit loops feel manipulative and need ethical redesign; Multi-skill portfolios need a rebuy path.

**Price:** $6.99 / pack USDC on Base via x402 unlock.

**Standards:** x402 payments · ERC-7857 sealed skill model · agent-swarm ready.

## Outline

1. Lock activity definitions for D1/D7/D30 skill-use retention
2. Design Day7 value touches and Day30 rebuy paths
3. Map habit cues that are ethical (no dark streaks)
4. Link retention lifts to LTV without inventing revenue
5. Emit retention metric pack + experiment backlog